package wang.jingzhao.command_help.control;

import android.content.*;
import android.graphics.*;
import android.graphics.drawable.*;
import android.net.*;
import android.text.*;
import android.util.*;
import android.widget.*;
import wang.jingzhao.command_help.*;
import wang.jingzhao.command_help.Util.*;

public class RoundImageView extends ImageView { 
	private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP; 
	private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888; 
	private static final int COLORDRAWABLE_DIMENSION = DensityUtil.dip2px(theApplication.getapplication(),1);; 
	// 圆形边框的厚度默认值。 
	// 如果是0，则没有天蓝色渐变的边框。 
	private static final int DEFAULT_BORDER_WIDTH = 5; 
	private static final int DEFAULT_BORDER_COLOR = Color.BLACK;
	private final RectF mDrawableRect = new RectF(); 
	private final RectF mBorderRect = new RectF(); 
	private final Matrix mShaderMatrix = new Matrix(); 
	private final Paint mBitmapPaint = new Paint(); 
	private final Paint mBorderPaint = new Paint(); 
	private int mBorderColor = DEFAULT_BORDER_COLOR; 
	private int mBorderWidth = DEFAULT_BORDER_WIDTH; 
	private Bitmap mBitmap; 
	private BitmapShader mBitmapShader; 
	private int mBitmapWidth; 
	private int mBitmapHeight; 
	private float mDrawableRadius; 
	private float mBorderRadius; 
	private boolean mReady; 
	private boolean mSetupPending; 
	private final Paint mFlagBackgroundPaint = new Paint(); 
	private final TextPaint mFlagTextPaint = new TextPaint(); 
	private String mFlagText; 
	private boolean mShowFlag = false; 
	private Rect mFlagTextBounds = new Rect(); 
	Shader mSweepGradient = null; 
	public RoundImageView(Context context) { 
		super(context); 
		init(); 
	}

	public RoundImageView(Context context, AttributeSet attrs) { 
		this(context, attrs, 0); 
	}

	public RoundImageView(Context context, AttributeSet attrs, int defStyle) { 
		super(context, attrs, defStyle); 
		init(); 
	}

	private void init() { 
		super.setScaleType(SCALE_TYPE); 
		mReady = true; 
		if (mSetupPending) { 
			setup(); 
			mSetupPending = false; 
		} 
	}

	@Override
	public ScaleType getScaleType() { 
		return SCALE_TYPE; 
	}

	@Override
	public void setScaleType(ScaleType scaleType) { 
		if (scaleType != SCALE_TYPE) { 
			throw new IllegalArgumentException(String.format( 
												   "ScaleType %s not supported.", scaleType)); 
		} 
	}

	@Override
	public void setAdjustViewBounds(boolean adjustViewBounds) { 
		if (adjustViewBounds) { 
			throw new IllegalArgumentException( 
				"adjustViewBounds not supported."); 
		} 
	}

	@Override
	protected void onDraw(Canvas canvas) { 
		if (getDrawable() == null) { 
			return; 
		} 
		canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, 
						  mBitmapPaint); 
		if (mBorderWidth != 0) { 
			canvas.save(); 
			canvas.rotate(20, getWidth() / 2, getHeight() / 2); 
			canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, 
							  mBorderPaint); 
			canvas.restore(); 
		} 
		if (mShowFlag && mFlagText != null) { 
			canvas.drawArc(mBorderRect, 40, 100, false, mFlagBackgroundPaint); 
			mFlagTextPaint.getTextBounds(mFlagText, 0, mFlagText.length(), 
										 mFlagTextBounds); 
			canvas.drawText(mFlagText, getWidth() / 2, 
							(float) ((3 + Math.cos((float) (Math.PI * 5 / 18))) 
							* getHeight() / 4 + mFlagTextBounds.height() / 3), 
							mFlagTextPaint); 
		} 
	}

	@Override
	protected void onSizeChanged(int w, int h, int oldw, int oldh) { 
		super.onSizeChanged(w, h, oldw, oldh); 
		setup(); 
	}

	public int getBorderColor() { 
		return mBorderColor; 
	}

	public void setBorderColor(int borderColor) { 
		if (borderColor == mBorderColor) { 
			return; 
		}

		mBorderColor = borderColor; 
		mBorderPaint.setColor(mBorderColor); 
		invalidate(); 
	}

	public int getBorderWidth() { 
		return mBorderWidth; 
	}

	/** 
	 * @param borderWidth 
	 *  圆形的边框厚度。 
	 */
	public void setBorderWidth(int borderWidth) { 
		if (borderWidth == mBorderWidth) { 
			return; 
		}

		mBorderWidth = borderWidth; 
		setup(); 
	}

	@Override
	public void setImageBitmap(Bitmap bm) { 
		super.setImageBitmap(bm); 
		mBitmap = bm; 
		setup(); 
	}

	@Override
	public void setImageDrawable(Drawable drawable) { 
		super.setImageDrawable(drawable); 
		mBitmap = getBitmapFromDrawable(drawable); 
		setup(); 
	}

	@Override
	public void setImageResource(int resId) { 
		super.setImageResource(resId); 
		mBitmap = getBitmapFromDrawable(getDrawable()); 
		setup(); 
	}

	@Override
	public void setImageURI(Uri uri) { 
		super.setImageURI(uri); 
		mBitmap = getBitmapFromDrawable(getDrawable()); 
		setup(); 
	}

	private Bitmap getBitmapFromDrawable(Drawable drawable) { 
		if (drawable == null) { 
			return null; 
		}

		if (drawable instanceof BitmapDrawable) { 
			return ((BitmapDrawable) drawable).getBitmap(); 
		}

		try { 
			Bitmap bitmap; 
			if (drawable instanceof ColorDrawable) { 
				bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, 
											 COLORDRAWABLE_DIMENSION, BITMAP_CONFIG); 
			} else { 
				bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), 
											 drawable.getIntrinsicHeight(), BITMAP_CONFIG); 
			}

			Canvas canvas = new Canvas(bitmap); 
			drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); 
			drawable.draw(canvas); 
			return bitmap; 
		} catch (OutOfMemoryError e) { 
			return null; 
		} 
	}

	private void setup() { 
		if (!mReady) { 
			mSetupPending = true; 
			return; 
		}

		if (mBitmap == null) { 
			return; 
		}

		mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, 
										 Shader.TileMode.CLAMP);

		mBitmapPaint.setAntiAlias(true); 
		mBitmapPaint.setShader(mBitmapShader);

		mBorderPaint.setStyle(Paint.Style.STROKE); 
		mBorderPaint.setAntiAlias(true); 
		mBorderPaint.setColor(mBorderColor); 
		mBorderPaint.setStrokeWidth(mBorderWidth);

		mBitmapHeight = mBitmap.getHeight(); 
		mBitmapWidth = mBitmap.getWidth();

		mBorderRect.set(0, 0, getWidth(), getHeight()); 
		mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, 
								 (mBorderRect.width() - mBorderWidth) / 2);

		mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width() 
						  - mBorderWidth, mBorderRect.height() - mBorderWidth); 
		mDrawableRadius = Math.min(mDrawableRect.height() / 2, 
								   mDrawableRect.width() / 2);

		mFlagBackgroundPaint.setColor(Color.BLACK & 0x66FFFFFF); 
		mFlagBackgroundPaint.setFlags(TextPaint.ANTI_ALIAS_FLAG);

		mFlagTextPaint.setFlags(TextPaint.ANTI_ALIAS_FLAG); 
		//mFlagTextPaint.setTextAlign(Align.CENTER); 
		mFlagTextPaint.setColor(Color.WHITE); 
		mFlagTextPaint 
			.setTextSize(getResources().getDisplayMetrics().density * 18);

		mSweepGradient = new SweepGradient(getWidth() / 2, getHeight() / 2, 
										   new int[] { Color.rgb(255, 255, 255), Color.rgb(1, 209, 255) }, 
										   null);

		mBorderPaint.setShader(mSweepGradient);

		updateShaderMatrix(); 
		invalidate(); 
	}

	private void updateShaderMatrix() { 
		float scale; 
		float dx = 0; 
		float dy = 0;

		mShaderMatrix.set(null);

		if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() 
			* mBitmapHeight) { 
			scale = mDrawableRect.height() / (float) mBitmapHeight; 
			dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f; 
		} else { 
			scale = mDrawableRect.width() / (float) mBitmapWidth; 
			dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f; 
		}

		mShaderMatrix.setScale(scale, scale); 
		mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth, 
									(int) (dy + 0.5f) + mBorderWidth);

		mBitmapShader.setLocalMatrix(mShaderMatrix); 
	}

	public void setShowFlag(boolean show) { 
		mShowFlag = show; 
		invalidate(); 
	}

	public void setFlagText(String text) { 
		mFlagText = text; 
		invalidate(); 
	} 
}

